Fix problem in UV coord generation of plane meshes

2020-04-06 19:13:49 +02:00
parent 185c02176f
commit 0de7426017
4 changed files with 150 additions and 89 deletions
--- a/orx-mesh-generators/src/demo/kotlin/DemoBox.kt
+++ b/orx-mesh-generators/src/demo/kotlin/DemoBox.kt
@@ -0,0 +1,35 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.DrawPrimitive
+import org.openrndr.draw.colorBuffer
+import org.openrndr.draw.shadeStyle
+import org.openrndr.extras.camera.Orbital
+import org.openrndr.extras.meshgenerators.boxMesh
+
+fun main() {
+    application {
+        program {
+            val box = boxMesh(1.0, 1.0, 1.0)
+            val texture = colorBuffer(256, 256)
+            val s = texture.shadow
+            for (y in 0 until 256) {
+                for (x in 0 until 256) {
+                    s[x, y] = ColorRGBa(x/256.0, y/256.0, 0.0, 1.0)
+                }
+            }
+            s.upload()
+
+            extend(Orbital())
+            extend {
+                drawer.background(ColorRGBa.PINK)
+                drawer.shadeStyle = shadeStyle {
+                    fragmentTransform = """
+                        x_fill = texture(p_texture, va_texCoord0.xy);
+                    """.trimIndent()
+                    parameter("texture", texture)
+                }
+                drawer.vertexBuffer(box, DrawPrimitive.TRIANGLES)
+            }
+        }
+    }
+}