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Add skinning support to orx-dnk3a

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This commit is contained in:
Edwin Jakobs
2020-05-24 18:54:14 +02:00
parent 51e43af595
commit 8f3af98585
17 changed files with 347 additions and 239 deletions
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2
build.gradle
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@@ -14,7 +14,7 @@ buildscript {
apply plugin: 'org.jetbrains.dokka'
project.ext {
openrndrVersion = "0.3.43-rc.1"
openrndrVersion = "0.3.43-rc.2"
kotlinVersion = "1.3.72"
spekVersion = "2.0.10"
libfreenectVersion = "0.5.7-1.5.3"

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demo-data/gltf-models/box/Box.glb Normal file
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142
demo-data/gltf-models/box/Box.gltf
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@@ -1,142 +0,0 @@
{
"asset": {
"generator": "COLLADA2GLTF",
"version": "2.0"
},
"scene": 0,
"scenes": [
{
"nodes": [
0
]
}
],
"nodes": [
{
"children": [
1
],
"matrix": [
1.0,
0.0,
0.0,
0.0,
0.0,
0.0,
-1.0,
0.0,
0.0,
1.0,
0.0,
0.0,
0.0,
0.0,
0.0,
1.0
]
},
{
"mesh": 0
}
],
"meshes": [
{
"primitives": [
{
"attributes": {
"NORMAL": 1,
"POSITION": 2
},
"indices": 0,
"mode": 5,
"material": 0
}
],
"name": "Mesh"
}
],
"accessors": [
{
"bufferView": 0,
"byteOffset": 0,
"componentType": 5123,
"count": 36,
"max": [
23
],
"min": [
0
],
"type": "SCALAR"
},
{
"bufferView": 1,
"byteOffset": 0,
"componentType": 5126,
"count": 24,
"max": [
1.0,
1.0,
1.0
],
"min": [
-1.0,
-1.0,
-1.0
],
"type": "VEC3"
},
{
"bufferView": 1,
"byteOffset": 288,
"componentType": 5126,
"count": 24,
"max": [
0.5,
0.5,
0.5
],
"min": [
-0.5,
-0.5,
-0.5
],
"type": "VEC3"
}
],
"materials": [
{
"pbrMetallicRoughness": {
"baseColorFactor": [
0.800000011920929,
0.0,
0.0,
1.0
],
"metallicFactor": 0.0
},
"name": "Red"
}
],
"bufferViews": [
{
"buffer": 0,
"byteOffset": 576,
"byteLength": 72,
"target": 34963
},
{
"buffer": 0,
"byteOffset": 0,
"byteLength": 576,
"byteStride": 12,
"target": 34962
}
],
"buffers": [
{
"byteLength": 648,
"uri": "Box0.bin"
}
]
}

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demo-data/gltf-models/box/Box0.bin
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demo-data/gltf-models/fox/Fox.glb Normal file
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4
orx-dnk3/README.md
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@@ -12,10 +12,10 @@ Supported Gltf features
- [x] Basic materials
- [x] Normal maps
- [x] Metallic/roughness maps
- [ ] Skinning
- [x] Skinning
- [x] Double-sided materials
- [ ] Transparency
- [ ] Animations
- [x] Animations
- [ ] Cameras
- [ ] Lights
<!-- __demos__ -->

2
orx-dnk3/build.gradle
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@@ -12,9 +12,11 @@ dependencies {
implementation "com.google.code.gson:gson:$gsonVersion"
implementation(project(":orx-fx"))
implementation(project(":orx-keyframer"))
demoImplementation(project(":orx-camera"))
demoImplementation("org.openrndr:openrndr-core:$openrndrVersion")
demoImplementation("org.openrndr:openrndr-extensions:$openrndrVersion")
demoImplementation("org.openrndr:openrndr-ffmpeg:$openrndrVersion")
demoRuntimeOnly("org.openrndr:openrndr-gl3:$openrndrVersion")
demoRuntimeOnly("org.openrndr:openrndr-gl3-natives-$openrndrOS:$openrndrVersion")
demoImplementation(sourceSets.getByName("main").output)

6
orx-dnk3/src/demo/kotlin/DemoScene02.kt
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@@ -25,7 +25,7 @@ fun main() = application {
}
}
val gltf = loadGltfFromFile(File("demo-data/gltf-models/complex02/scene.gltf"))
val gltf = loadGltfFromFile(File("demo-data/gltf-models/duck/Duck.gltf"))
// val gltf = loadGltfFromGlbFile(File("demo-data/gltf-models/splash-sss.glb"))
val scene = Scene(SceneNode())
@@ -48,8 +48,8 @@ fun main() = application {
val renderer = dryRenderer()
extend(Orbital()) {
far = 500.0
lookAt = Vector3(0.0, 0.7, 0.0)
eye = Vector3(3.0, 0.7, -2.0)
lookAt = Vector3(0.0, 0.8, 0.0)
eye = Vector3(3.0, 0.8, -2.0)
fov = 30.0
}
extend {

52
orx-dnk3/src/demo/kotlin/DemoSkinning01.kt Normal file
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@@ -0,0 +1,52 @@
import org.openrndr.application
import org.openrndr.color.ColorRGBa
import org.openrndr.extensions.SingleScreenshot
import org.openrndr.extra.dnk3.*
import org.openrndr.extra.dnk3.gltf.buildSceneNodes
import org.openrndr.extra.dnk3.gltf.loadGltfFromFile
import org.openrndr.extras.camera.Orbital
import org.openrndr.math.Vector3
import org.openrndr.math.mod_
import java.io.File
fun main() = application {
configure {
width = 1280
height = 720
//multisample = WindowMultisample.SampleCount(8)
}
program {
if (System.getProperty("takeScreenshot") == "true") {
extend(SingleScreenshot()) {
this.outputFile = System.getProperty("screenshotPath")
}
}
val gltf = loadGltfFromFile(File("demo-data/gltf-models/fox/Fox.glb"))
val scene = Scene(SceneNode())
scene.root.entities.add(HemisphereLight().apply {
upColor = ColorRGBa.WHITE.shade(0.4)
downColor = ColorRGBa.GRAY.shade(0.1)
})
val sceneData = gltf.buildSceneNodes()
scene.root.children.addAll(sceneData.scenes.first())
// -- create a renderer
val renderer = dryRenderer()
extend(Orbital()) {
far = 500.0
lookAt = Vector3(0.0, 40.0, 0.0)
eye = Vector3(150.0, 40.0, 200.0)
fov = 40.0
}
extend {
sceneData.animations[2].applyToTargets(seconds.mod_(sceneData.animations[2].duration))
drawer.clear(ColorRGBa.PINK)
renderer.draw(drawer, scene)
}
}
}

29
orx-dnk3/src/main/kotlin/Entity.kt
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@@ -2,24 +2,47 @@ package org.openrndr.extra.dnk3
import org.openrndr.color.ColorRGBa
import org.openrndr.draw.*
import org.openrndr.math.Matrix44
class Geometry(val vertexBuffers: List<VertexBuffer>,
val indexBuffer: IndexBuffer?,
val primitive: DrawPrimitive,
val offset: Int,
val vertexCount: Int)
val vertexCount: Int) {
override fun toString(): String {
return "Geometry(vertexBuffers: $vertexBuffers, indexBuffers: $indexBuffer, primitive: $primitive, offset: $offset, vertexCount: $vertexCount)"
}
}
val DummyGeometry = Geometry(emptyList(), null, DrawPrimitive.TRIANGLES, 0, 0)
sealed class Entity
class MeshPrimitive(var geometry: Geometry, var material: Material)
class MeshPrimitive(var geometry: Geometry, var material: Material) {
override fun toString(): String {
return "MeshPrimitive(geometry: $geometry, material: $material)"
}
}
class MeshPrimitiveInstance(val primitive: MeshPrimitive, val instances: Int, val attributes: List<VertexBuffer>)
abstract class MeshBase(var primitives: List<MeshPrimitive>) : Entity()
class Mesh(primitives: List<MeshPrimitive>) : MeshBase(primitives)
class Mesh(primitives: List<MeshPrimitive>) : MeshBase(primitives) {
override fun toString(): String {
return "Mesh(primitives: $primitives)"
}
}
class SkinnedMesh(primitives: List<MeshPrimitive>,
val joints: List<SceneNode>,
val skeleton: SceneNode,
val inverseBindMatrices: List<Matrix44>
) : MeshBase(primitives)
class InstancedMesh(primitives: List<MeshPrimitive>,
var instances: Int,

5
orx-dnk3/src/main/kotlin/Facet.kt
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@@ -113,10 +113,9 @@ class ClipPositionFacet : ColorBufferFacetCombiner(setOf(FacetType.CLIP_POSITION
class LDRColorFacet : ColorBufferFacetCombiner(setOf(FacetType.DIFFUSE, FacetType.SPECULAR), "color", ColorFormat.RGBa, ColorType.UINT8) {
override fun generateShader() = """
vec3 oofinalColor = (f_diffuse.rgb + f_specular.rgb + f_emission.rgb) * (1.0 - f_fog.a) + f_fog.rgb * f_fog.a;
o_$targetOutput = pow(vec4(oofinalColor.rgb, 1.0), vec4(1.0/2.2));
vec3 finalColor = (max(vec3(0.0), f_diffuse.rgb) + max(vec3(0.0),f_specular.rgb) + max(vec3(0.0), f_emission.rgb)) * (1.0 - f_fog.a) + f_fog.rgb * f_fog.a;
o_$targetOutput = pow(vec4(finalColor.rgb, 1.0), vec4(1.0/2.2));
o_$targetOutput *= m_color.a;
"""
}

8
orx-dnk3/src/main/kotlin/Material.kt
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@@ -8,7 +8,7 @@ import org.openrndr.draw.shadeStyle
interface Material {
var doubleSided: Boolean
var transparent: Boolean
fun generateShadeStyle(context: MaterialContext): ShadeStyle
fun generateShadeStyle(context: MaterialContext, primitiveContext: PrimitiveContext): ShadeStyle
fun applyToShadeStyle(context: MaterialContext, shadeStyle: ShadeStyle)
}
@@ -17,7 +17,7 @@ class DummyMaterial : Material {
override var transparent: Boolean = false
override fun generateShadeStyle(context: MaterialContext): ShadeStyle {
override fun generateShadeStyle(context: MaterialContext, primitiveContext: PrimitiveContext): ShadeStyle {
return shadeStyle {
fragmentTransform = """
x_fill.rgb = vec3(normalize(v_viewNormal).z);
@@ -38,3 +38,7 @@ data class MaterialContext(val pass: RenderPass,
val meshCubemaps: Map<Mesh, Cubemap>
)
data class PrimitiveContext(val hasNormalAttribute: Boolean, val hasSkinning: Boolean)
data class ContextKey(val materialContext: MaterialContext, val primitiveContext: PrimitiveContext)

113
orx-dnk3/src/main/kotlin/PBRMaterial.kt
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@@ -7,6 +7,7 @@ import org.openrndr.math.Vector3
import org.openrndr.math.Vector4
import org.openrndr.math.transforms.normalMatrix
import java.nio.ByteBuffer
import javax.naming.Context
import kotlin.math.cos
@@ -29,7 +30,7 @@ private val noise128 by lazy {
cb
}
private fun PointLight.fs(index: Int): String = """
private fun PointLight.fs(index: Int, hasNormalAttribute: Boolean): String = """
|{
| vec3 Lr = p_lightPosition$index - v_worldPosition;
| float distance = length(Lr);
@@ -37,7 +38,7 @@ private fun PointLight.fs(index: Int): String = """
| p_lightLinearAttenuation$index * distance + p_lightQuadraticAttenuation$index * distance * distance);
| vec3 L = normalize(Lr);
|
| float side = dot(L, N) ;
| float side = ${if (hasNormalAttribute) "dot(L, N)" else "3.1415"};
| f_diffuse += attenuation * max(0, side / 3.1415) * p_lightColor$index.rgb * m_color.rgb;
| f_specular += attenuation * ggx(N, V, L, m_roughness, m_f0) * p_lightColor$index.rgb * m_color.rgb;
}
@@ -45,14 +46,14 @@ private fun PointLight.fs(index: Int): String = """
private fun AmbientLight.fs(index: Int): String = "f_ambient += p_lightColor$index.rgb * ((1.0 - m_metalness) * m_color.rgb);"
private fun DirectionalLight.fs(index: Int) = """
private fun DirectionalLight.fs(index: Int, hasNormalAttribute: Boolean) = """
|{
| vec3 L = normalize(-p_lightDirection$index);
| float attenuation = 1.0;
| vec3 H = normalize(V + L);
| float NoL = clamp(dot(N, L), 0.0, 1.0);
| float NoL = ${if (hasNormalAttribute) "clamp(dot(N, L), 0.0, 1.0)" else "1"};
| float LoH = clamp(dot(L, H), 0.0, 1.0);
| float NoH = clamp(dot(N, H), 0.0, 1.0);
| float NoH = ${if (hasNormalAttribute) "clamp(dot(N, H), 0.0, 1.0)" else "1"};
| vec3 Lr = (p_lightPosition$index - v_worldPosition);
//| vec3 L = normalize(Lr);
| ${shadows.fs(index)}
@@ -66,15 +67,15 @@ private fun DirectionalLight.fs(index: Int) = """
|}
""".trimMargin()
private fun HemisphereLight.fs(index: Int): String = """
private fun HemisphereLight.fs(index: Int, hasNormalAttribute: Boolean): String = """
|{
| float f = dot(N, p_lightDirection$index) * 0.5 + 0.5;
| float f = ${if (hasNormalAttribute) "dot(N, p_lightDirection$index) * 0.5 + 0.5" else "1"};
| vec3 irr = ${irradianceMap?.let { "texture(p_lightIrradianceMap$index, N).rgb" } ?: "vec3(1.0)"};
| f_diffuse += mix(p_lightDownColor$index.rgb, p_lightUpColor$index.rgb, f) * irr * ((1.0 - m_metalness) * m_color.rgb) * m_ambientOcclusion;
|}
""".trimMargin()
private fun SpotLight.fs(index: Int): String {
private fun SpotLight.fs(index: Int, hasNormalAttribute: Boolean): String {
val shadows = shadows
return """
|{
@@ -85,7 +86,7 @@ private fun SpotLight.fs(index: Int): String {
| attenuation = 1.0;
| vec3 L = normalize(Lr);
| float NoL = clamp(dot(N, L), 0.0, 1.0);
| float NoL = ${if (hasNormalAttribute) "clamp(dot(N, L), 0.0, 1.0)" else "1"};
| float side = dot(L, N);
| float hit = max(dot(-L, p_lightDirection$index), 0.0);
| float falloff = clamp((hit - p_lightOuterCos$index) / (p_lightInnerCos$index - p_lightOuterCos$index), 0.0, 1.0);
@@ -94,7 +95,7 @@ private fun SpotLight.fs(index: Int): String {
| {
| vec3 H = normalize(V + L);
| float LoH = clamp(dot(L, H), 0.0, 1.0);
| float NoH = clamp(dot(N, H), 0.0, 1.0);
| float NoH = ${if (hasNormalAttribute) "clamp(dot(N, H), 0.0, 1.0)" else 1.0};
| f_diffuse += NoL * (0.1+0.9*attenuation) * Fd_Burley(m_roughness * m_roughness, NoV, NoL, LoH) * p_lightColor$index.rgb * m_color.rgb ;
| float Dg = D_GGX(m_roughness * m_roughness, NoH, H);
| float Vs = V_SmithGGXCorrelated(m_roughness * m_roughness, NoV, NoL);
@@ -114,7 +115,12 @@ private fun Fog.fs(index: Int): String = """
""".trimMargin()
sealed class TextureSource
object DummySource : TextureSource()
object DummySource : TextureSource() {
override fun toString(): String {
return "DummySource()"
}
}
abstract class TextureFromColorBuffer(var texture: ColorBuffer, var textureFunction: TextureFunction) : TextureSource()
class TextureFromCode(val code: String) : TextureSource()
@@ -145,7 +151,11 @@ class ModelCoordinates(texture: ColorBuffer,
var tangentInput: String? = null,
textureFunction: TextureFunction = TextureFunction.TILING,
var pre: String? = null,
var post: String? = null) : TextureFromColorBuffer(texture, textureFunction)
var post: String? = null) : TextureFromColorBuffer(texture, textureFunction) {
override fun toString(): String {
return "ModelCoordinates(texture: $texture, input: $input, $tangentInput: $tangentInput, textureFunction: $textureFunction, pre: $pre, post: $post)"
}
}
class Triplanar(texture: ColorBuffer,
var scale: Double = 1.0,
@@ -171,7 +181,8 @@ private fun ModelCoordinates.fs(index: Int) = """
| ${if (pre != null) "{ $pre } " else ""}
| x_texture = ${textureFunction.function("p_texture$index", "x_texCoord")};
| ${if (post != null) "{ $post } " else ""}
| ${if (tangentInput != null) { """
| ${if (tangentInput != null) {
"""
| vec3 normal = normalize(va_normal.xyz);
| vec3 tangent = normalize(${tangentInput}.xyz);
| vec3 bitangent = cross(normal, tangent) * ${tangentInput}.w;
@@ -225,16 +236,20 @@ private fun Triplanar.fs(index: Int, target: TextureTarget) = """
""".trimIndent() else ""}
""".trimMargin()
sealed class TextureTarget {
object NONE : TextureTarget()
object COLOR : TextureTarget()
object ROUGHNESS : TextureTarget()
object METALNESS : TextureTarget()
object METALNESS_ROUGHNESS : TextureTarget()
object EMISSION : TextureTarget()
object NORMAL : TextureTarget()
object AMBIENT_OCCLUSION : TextureTarget()
class Height(var scale: Double = 1.0) : TextureTarget()
sealed class TextureTarget(val name: String) {
object NONE : TextureTarget("NONE")
object COLOR : TextureTarget("COLOR")
object ROUGHNESS : TextureTarget("ROUGHNESS")
object METALNESS : TextureTarget("METALNESS")
object METALNESS_ROUGHNESS : TextureTarget("METALNESS_ROUGHNESS")
object EMISSION : TextureTarget("EMISSION")
object NORMAL : TextureTarget("NORMAL")
object AMBIENT_OCCLUSION : TextureTarget("AMBIENT_OCCLUSION")
class Height(var scale: Double = 1.0) : TextureTarget("Height")
override fun toString(): String {
return "TextureTarget(name: $name)"
}
}
class Texture(var source: TextureSource,
@@ -243,9 +258,17 @@ class Texture(var source: TextureSource,
val copied = Texture(source, target)
return copied
}
override fun toString(): String {
return "Texture(source: $source, target: $target)"
}
}
class PBRMaterial : Material {
override fun toString(): String {
return "PBRMaterial(textures: $textures, color: $color, metalness: $metalness, roughness: $roughness, emissive: $emission))"
}
override var doubleSided: Boolean = false
override var transparent: Boolean = false
var environmentMap = false
@@ -259,7 +282,7 @@ class PBRMaterial : Material {
var parameters = mutableMapOf<String, Any>()
var textures = mutableListOf<Texture>()
val shadeStyles = mutableMapOf<MaterialContext, ShadeStyle>()
val shadeStyles = mutableMapOf<ContextKey, ShadeStyle>()
// fun copy(): PBRMaterial {
// val copied = PBRMaterial()
@@ -276,9 +299,9 @@ class PBRMaterial : Material {
// return copied
// }
override fun generateShadeStyle(context: MaterialContext): ShadeStyle {
val cached = shadeStyles.getOrPut(context) {
val needLight = needLight(context)
override fun generateShadeStyle(materialContext: MaterialContext, primitiveContext: PrimitiveContext): ShadeStyle {
val cached = shadeStyles.getOrPut(ContextKey(materialContext, primitiveContext)) {
val needLight = needLight(materialContext)
val preambleFS = """
vec4 m_color = p_color;
float m_f0 = 0.5;
@@ -317,6 +340,20 @@ class PBRMaterial : Material {
val displacers = textures.filter { it.target is TextureTarget.Height }
val skinVS = if (primitiveContext.hasSkinning) """
uvec4 j = a_joints;
mat4 skinTransform = p_jointTransforms[j.x] * a_weights.x
+ p_jointTransforms[j.y] * a_weights.y
+ p_jointTransforms[j.z] * a_weights.z
+ p_jointTransforms[j.w] * a_weights.w;
${if (primitiveContext.hasNormalAttribute) """
x_normal = normalize(mat3(skinTransform) * x_normal);
""".trimIndent() else ""}
x_position = (skinTransform * vec4(x_position,1)).xyz;
""".trimIndent() else ""
val textureVS = if (displacers.isNotEmpty()) textures.mapIndexed { index, it ->
if (it.target is TextureTarget.Height) {
when (val source = it.source) {
@@ -331,7 +368,7 @@ class PBRMaterial : Material {
} else ""
}.joinToString("\n") else ""
val lights = context.lights
val lights = materialContext.lights
val lightFS = if (needLight) """
vec3 f_diffuse = vec3(0.0);
vec3 f_specular = vec3(0.0);
@@ -342,9 +379,9 @@ class PBRMaterial : Material {
vec3 ep = (p_viewMatrixInverse * vec4(0.0, 0.0, 0.0, 1.0)).xyz;
vec3 Vr = ep - v_worldPosition;
vec3 V = normalize(Vr);
float NoV = abs(dot(N, V)) + 1e-5;
float NoV = ${if (primitiveContext.hasNormalAttribute) "abs(dot(N, V)) + 1e-5" else "1"};
${if (environmentMap && context.meshCubemaps.isNotEmpty()) """
${if (environmentMap && materialContext.meshCubemaps.isNotEmpty() && primitiveContext.hasNormalAttribute) """
{
vec2 dfg = PrefilteredDFG_Karis(m_roughness, NoV);
vec3 sc = m_metalness * m_color.rgb + (1.0-m_metalness) * vec3(0.04);
@@ -356,27 +393,27 @@ class PBRMaterial : Material {
${lights.mapIndexed { index, (node, light) ->
when (light) {
is AmbientLight -> light.fs(index)
is PointLight -> light.fs(index)
is SpotLight -> light.fs(index)
is DirectionalLight -> light.fs(index)
is HemisphereLight -> light.fs(index)
is PointLight -> light.fs(index, primitiveContext.hasNormalAttribute)
is SpotLight -> light.fs(index, primitiveContext.hasNormalAttribute)
is DirectionalLight -> light.fs(index, primitiveContext.hasNormalAttribute)
is HemisphereLight -> light.fs(index, primitiveContext.hasNormalAttribute)
else -> TODO()
}
}.joinToString("\n")}
${context.fogs.mapIndexed { index, (node, fog) ->
${materialContext.fogs.mapIndexed { index, (node, fog) ->
fog.fs(index)
}.joinToString("\n")}
""".trimIndent() else ""
val rt = RenderTarget.active
val combinerFS = context.pass.combiners.map {
val combinerFS = materialContext.pass.combiners.map {
it.generateShader()
}.joinToString("\n")
val fs = preambleFS + textureFs + lightFS + combinerFS
val vs = (this@PBRMaterial.vertexTransform ?: "") + textureVS
val vs = (this@PBRMaterial.vertexTransform ?: "") + textureVS + skinVS
shadeStyle {
vertexPreamble = """
@@ -394,7 +431,7 @@ class PBRMaterial : Material {
this.suppressDefaultOutput = true
this.vertexTransform = vs
fragmentTransform = fs
context.pass.combiners.map {
materialContext.pass.combiners.map {
if (rt.colorBuffers.size <= 1) {
this.output(it.targetOutput, 0)
} else

79
orx-dnk3/src/main/kotlin/SceneRenderer.kt
View File

@@ -5,6 +5,7 @@ import org.openrndr.draw.*
import org.openrndr.draw.depthBuffer
import org.openrndr.extra.fx.blur.ApproximateGaussianBlur
import org.openrndr.math.Matrix44
import org.openrndr.math.transforms.normalMatrix
class SceneRenderer {
@@ -48,10 +49,11 @@ class SceneRenderer {
val lights = scene.root.findContent { this as? Light }
val meshes = scene.root.findContent { this as? Mesh }
val skinnedMeshes = scene.root.findContent { this as? SkinnedMesh }
val fogs = scene.root.findContent { this as? Fog }
val instancedMeshes = scene.root.findContent { this as? InstancedMesh }
run {
lights.filter { it.content is ShadowLight && (it.content as ShadowLight).shadows is Shadows.MappedShadows }.forEach {
val shadowLight = it.content as ShadowLight
@@ -80,7 +82,7 @@ class SceneRenderer {
drawer.clear(ColorRGBa.BLACK)
drawer.cullTestPass = CullTestPass.FRONT
drawPass(drawer, pass, materialContext, meshes, instancedMeshes)
drawPass(drawer, pass, materialContext, meshes, instancedMeshes, skinnedMeshes)
}
when (shadowLight.shadows) {
is Shadows.VSM -> {
@@ -99,7 +101,6 @@ class SceneRenderer {
for (pass in outputPasses) {
val materialContext = MaterialContext(pass, lights, fogs, shadowLightTargets, meshCubemaps)
val defaultPasses = setOf(DefaultTransparentPass, DefaultOpaquePass)
if ((pass !in defaultPasses || postSteps.isNotEmpty()) && outputPassTarget == null) {
@@ -109,7 +110,7 @@ class SceneRenderer {
if (pass == outputPasses[0]) {
outputPassTarget?.let {
drawer.withTarget(it) {
background(ColorRGBa.PINK)
clear(ColorRGBa.PINK)
}
}
}
@@ -122,7 +123,7 @@ class SceneRenderer {
}
}
outputPassTarget?.bind()
drawPass(drawer, pass, materialContext, meshes, instancedMeshes)
drawPass(drawer, pass, materialContext, meshes, instancedMeshes, skinnedMeshes)
outputPassTarget?.unbind()
outputPassTarget?.let { output ->
@@ -167,7 +168,9 @@ class SceneRenderer {
private fun drawPass(drawer: Drawer, pass: RenderPass, materialContext: MaterialContext,
meshes: List<NodeContent<Mesh>>,
instancedMeshes: List<NodeContent<InstancedMesh>>) {
instancedMeshes: List<NodeContent<InstancedMesh>>,
skinnedMeshes: List<NodeContent<SkinnedMesh>>
) {
drawer.depthWrite = pass.depthWrite
val primitives = meshes.flatMap { mesh ->
@@ -185,8 +188,9 @@ class SceneRenderer {
if (primitive.material.doubleSided) {
drawer.drawStyle.cullTestPass = CullTestPass.ALWAYS
}
val shadeStyle = primitive.material.generateShadeStyle(materialContext)
val hasNormalAttribute = primitive.geometry.vertexBuffers.any { it.vertexFormat.hasAttribute("normal") }
val primitiveContext = PrimitiveContext(hasNormalAttribute, false)
val shadeStyle = primitive.material.generateShadeStyle(materialContext, primitiveContext)
shadeStyle.parameter("viewMatrixInverse", drawer.view.inversed)
primitive.material.applyToShadeStyle(materialContext, shadeStyle)
drawer.shadeStyle = shadeStyle
@@ -207,6 +211,62 @@ class SceneRenderer {
}
}
val skinnedPrimitives = skinnedMeshes.flatMap { mesh ->
mesh.content.primitives.map { primitive ->
NodeContent(mesh.node, Pair(primitive, mesh))
}
}
skinnedPrimitives
.filter {
(it.content.first.material.transparent && pass.renderTransparent) ||
(!it.content.first.material.transparent && pass.renderOpaque)
}
.forEach {
val primitive = it.content.first
val skinnedMesh = it.content.second.content
drawer.isolated {
if (primitive.material.doubleSided) {
drawer.drawStyle.cullTestPass = CullTestPass.ALWAYS
}
val hasNormalAttribute = primitive.geometry.vertexBuffers.any { it.vertexFormat.hasAttribute("normal") }
val primitiveContext = PrimitiveContext(hasNormalAttribute, true)
val nodeInverse = it.node.worldTransform.inversed
val jointTransforms = (skinnedMesh.joints zip skinnedMesh.inverseBindMatrices)
.map{ (nodeInverse * it.first.worldTransform * it.second) }
// val jointNormalTransforms = jointTransforms.map { Matrix44.IDENTITY }
val shadeStyle = primitive.material.generateShadeStyle(materialContext, primitiveContext)
shadeStyle.parameter("jointTransforms", jointTransforms.toTypedArray())
// shadeStyle.parameter("jointNormalTransforms", jointNormalTransforms.toTypedArray())
shadeStyle.parameter("viewMatrixInverse", drawer.view.inversed)
primitive.material.applyToShadeStyle(materialContext, shadeStyle)
drawer.shadeStyle = shadeStyle
drawer.model = it.node.worldTransform
if (primitive.geometry.indexBuffer == null) {
drawer.vertexBuffer(primitive.geometry.vertexBuffers,
primitive.geometry.primitive,
primitive.geometry.offset,
primitive.geometry.vertexCount)
} else {
drawer.vertexBuffer(primitive.geometry.indexBuffer!!,
primitive.geometry.vertexBuffers,
primitive.geometry.primitive,
primitive.geometry.offset,
primitive.geometry.vertexCount)
}
}
}
val instancedPrimitives = instancedMeshes.flatMap { mesh ->
mesh.content.primitives.map { primitive ->
NodeContent(mesh.node, MeshPrimitiveInstance(primitive, mesh.content.instances, mesh.content.attributes))
@@ -219,7 +279,8 @@ class SceneRenderer {
.forEach {
val primitive = it.content
drawer.isolated {
val shadeStyle = primitive.primitive.material.generateShadeStyle(materialContext)
val primitiveContext = PrimitiveContext(true, false)
val shadeStyle = primitive.primitive.material.generateShadeStyle(materialContext, primitiveContext)
shadeStyle.parameter("viewMatrixInverse", drawer.view.inversed)
primitive.primitive.material.applyToShadeStyle(materialContext, shadeStyle)
if (primitive.primitive.material.doubleSided) {

1
orx-dnk3/src/main/kotlin/gltf/Glb.kt
View File

@@ -28,6 +28,7 @@ fun loadGltfFromGlbFile(file: File): GltfFile {
if (chunkType == 0x004E4942) ByteBuffer.allocateDirect(chunkLength) else ByteBuffer.allocate(chunkLength)
(chunkBuffer as ByteBuffer)
channel.read(chunkBuffer)
chunkBuffer.order(ByteOrder.nativeOrder())
return chunkBuffer
}

28
orx-dnk3/src/main/kotlin/gltf/Gltf.kt
View File

@@ -33,7 +33,8 @@ class GltfNode(val children: IntArray?,
val scale: DoubleArray?,
val rotation: DoubleArray?,
val translation: DoubleArray?,
val mesh: Int?)
val mesh: Int?,
val skin: Int?)
class GltfPrimitive(val attributes: LinkedHashMap<String, Int>, val indices: Int?, val mode: Int?, val material: Int) {
fun createDrawCommand(gltfFile: GltfFile): GltfDrawCommand {
@@ -87,6 +88,23 @@ class GltfPrimitive(val attributes: LinkedHashMap<String, Int>, val indices: Int
textureCoordinate(dimensions, 0)
accessors.add(accessor)
}
"JOINTS_0" -> {
val type = when (Pair(accessor.type, accessor.componentType)) {
Pair("VEC4", GLTF_UNSIGNED_BYTE) -> VertexElementType.VECTOR4_UINT8
Pair("VEC4", GLTF_UNSIGNED_SHORT) -> VertexElementType.VECTOR4_UINT16
else -> error("not supported ${accessor.type} / ${accessor.componentType}")
}
attribute("joints", type)
accessors.add(accessor)
}
"WEIGHTS_0" -> {
val type = when (Pair(accessor.type, accessor.componentType)) {
Pair("VEC4", GLTF_FLOAT) -> VertexElementType.VECTOR4_FLOAT32
else -> error("not supported ${accessor.type} / ${accessor.componentType}")
}
attribute("weights", type)
accessors.add(accessor)
}
}
}
}
@@ -181,7 +199,6 @@ class GltfBufferView(val buffer: Int,
class GltfBuffer(val byteLength: Int, val uri: String?) {
fun contents(gltfFile: GltfFile): ByteBuffer = if (uri != null) {
if (uri.startsWith("data:")) {
val base64 = uri.substring(uri.indexOf(",") + 1)
val decoded = Base64.getDecoder().decode(base64)
@@ -223,6 +240,9 @@ class GltfChannelTarget(val node: Int?, val path: String?)
class GltfChannel(val sampler: Int, val target: GltfChannelTarget)
class GltfSkin(val inverseBindMatrices: Int, val joints: IntArray, val skeleton: Int)
class GltfFile(
val asset: GltfAsset?,
val scene: Int?,
@@ -236,7 +256,9 @@ class GltfFile(
val images: List<GltfImage>?,
val textures: List<GltfTexture>?,
val samplers: List<GltfSampler>?,
val animations: List<GltfAnimation>?) {
val animations: List<GltfAnimation>?,
val skins: List<GltfSkin>?
) {
@Transient
lateinit var file: File

107
orx-dnk3/src/main/kotlin/gltf/GltfScene.kt
View File

@@ -10,10 +10,18 @@ import org.openrndr.math.Quaternion
import org.openrndr.math.Vector3
import org.openrndr.math.transforms.transform
import java.io.File
import java.nio.Buffer
import java.nio.ByteOrder
import kotlin.reflect.KMutableProperty0
class SceneAnimation(var channels: List<AnimationChannel>) {
val duration: Double
get() {
return channels.maxBy { it.duration }?.duration ?:0.0
}
fun applyToTargets(input: Double) {
for (channel in channels) {
channel.applyToTarget(input)
@@ -22,6 +30,7 @@ class SceneAnimation(var channels: List<AnimationChannel>) {
}
sealed class AnimationChannel {
abstract val duration: Double
abstract fun applyToTarget(input: Double)
}
@@ -30,6 +39,9 @@ class QuaternionChannel(val target: KMutableProperty0<Quaternion>,
override fun applyToTarget(input: Double) {
target.set(keyframer.value(input) ?: Quaternion.IDENTITY)
}
override val duration: Double
get() = keyframer.duration()
}
class Vector3Channel(val target: KMutableProperty0<Vector3>,
@@ -37,6 +49,8 @@ class Vector3Channel(val target: KMutableProperty0<Vector3>,
override fun applyToTarget(input: Double) {
target.set(keyframer.value(input) ?: default)
}
override val duration: Double
get() = keyframer.duration()
}
class GltfSceneNode : SceneNode() {
@@ -44,6 +58,11 @@ class GltfSceneNode : SceneNode() {
var scale = Vector3.ONE
var rotation = Quaternion.IDENTITY
override fun toString(): String {
return "translation: $translation, scale: $scale, rotation: $rotation, children: ${children.size}, entities: ${entities} "
}
override var transform: Matrix44 = Matrix44.IDENTITY
get() = transform {
translate(translation)
@@ -93,6 +112,12 @@ fun GltfFile.buildSceneNodes(): GltfSceneData {
pbrMetallicRoughness?.let { pbr ->
material.roughness = pbr.roughnessFactor ?: 1.0
material.metalness = pbr.metallicFactor ?: 1.0
material.color = ColorRGBa.WHITE
pbr.baseColorFactor?.let {
material.color = ColorRGBa(it[0], it[1], it[2], it[3])
}
pbr.baseColorTexture?.let { texture ->
val cb = images!![textures!![texture.index].source].createSceneImage()
cb.filter(MinifyingFilter.LINEAR_MIPMAP_LINEAR, MagnifyingFilter.LINEAR)
@@ -181,32 +206,10 @@ fun GltfFile.buildSceneNodes(): GltfSceneData {
return MeshPrimitive(geometry, material)
}
val sceneMeshes = mutableMapOf<GltfMesh, Mesh>()
fun GltfMesh.createSceneMesh(): Mesh = sceneMeshes.getOrPut(this) {
Mesh(primitives.map {
it.createScenePrimitive()
})
}
val sceneNodes = mutableMapOf<GltfNode, SceneNode>()
fun GltfNode.createSceneNode(): SceneNode = sceneNodes.getOrPut(this) {
val node = GltfSceneNode()
mesh?.let {
node.entities.add(meshes[it].createSceneMesh())
}
// val localTransform = transform {
// translation?.let {
// translate(it[0], it[1], it[2])
// }
// rotation?.let {
// val q = Quaternion(it[0], it[1], it[2], it[3])
// multiply(q.matrix.matrix44)
// }
// scale?.let {
// scale(it[0], it[1], it[2])
// }
// }
node.translation = translation?.let { Vector3(it[0], it[1], it[2]) } ?: Vector3.ZERO
node.scale = scale?.let { Vector3(it[0], it[1], it[2]) } ?: Vector3.ONE
node.rotation = rotation?.let { Quaternion(it[0], it[1], it[2], it[3]) } ?: Quaternion.IDENTITY
@@ -214,20 +217,66 @@ fun GltfFile.buildSceneNodes(): GltfSceneData {
matrix?.let {
node.transform = Matrix44.fromDoubleArray(it).transposed
}
// node.transform = this.matrix?.let {
// Matrix44.fromDoubleArray(it).transposed
// } ?: localTransform
for (child in children.orEmpty) {
node.children.add(nodes[child].createSceneNode())
}
node
}
val sceneMeshes = mutableMapOf<GltfMesh, MeshBase>()
fun GltfMesh.createSceneMesh(skin: GltfSkin?): MeshBase = sceneMeshes.getOrPut(this) {
if (skin == null) {
Mesh(primitives.map {
it.createScenePrimitive()
})
} else {
val joints = skin.joints.map { nodes[it].createSceneNode() }
val skeleton = nodes[skin.skeleton].createSceneNode()
val ibmAccessor = accessors[skin.inverseBindMatrices]
val ibmBufferView = bufferViews[ibmAccessor.bufferView]
val ibmBuffer = buffers[ibmBufferView.buffer]
val ibmData = ibmBuffer.contents(this@buildSceneNodes)
ibmData.order(ByteOrder.nativeOrder())
(ibmData as Buffer).position(ibmAccessor.byteOffset + (ibmBufferView.byteOffset ?: 0))
require(ibmAccessor.type == "MAT4")
require(ibmAccessor.componentType == GLTF_FLOAT)
require(ibmAccessor.count == joints.size)
val ibms = (0 until ibmAccessor.count).map {
val array = DoubleArray(16)
for (i in 0 until 16) {
array[i] = ibmData.float.toDouble()
}
val m = Matrix44.fromDoubleArray(array).transposed
println("--")
println(m)
println(array.joinToString(","))
m
}
SkinnedMesh(primitives.map {
it.createScenePrimitive()
}, joints, skeleton, ibms)
}
}
val scenes = scenes.map { scene ->
println(scene.nodes.size)
scene.nodes.map { node ->
nodes[node].createSceneNode()
println("node: $node")
val gltfNode = nodes[node]
val sceneNode = gltfNode.createSceneNode()
sceneNode
}
}
for ((gltfNode, sceneNode) in sceneNodes) {
gltfNode.mesh?.let {
val skin = gltfNode.skin?.let { (skins!!)[it] }
println("adding mesh")
sceneNode.entities.add(meshes[it].createSceneMesh(skin))
}
}
@@ -276,7 +325,7 @@ fun GltfFile.buildSceneNodes(): GltfSceneData {
}
val keyframer = KeyframerChannelQuaternion()
val inputOffset = (inputBufferView.byteOffset ?: 0) + (inputAccessor.byteOffset ?: 0)
val outputOffset = (outputBufferView.byteOffset ?: 0) + (inputAccessor.byteOffset ?: 0)
val outputOffset = (outputBufferView.byteOffset ?: 0) + (outputAccessor.byteOffset ?: 0)
val inputStride = (inputBufferView.byteStride ?: 4)
val outputStride = (outputBufferView.byteStride ?: 16)
for (i in 0 until outputAccessor.count) {