add clamping and tiny offsetting to uv coordinates... rendering tiny bit more correctly

com/danitheskunk/skunkworks/Test3D.java

@@ -1,5 +1,6 @@
 package com.danitheskunk.skunkworks;
 
+import com.danitheskunk.skunkworks.gfx.IRenderContext;
 import com.danitheskunk.skunkworks.gfx.ITexture;
 import com.danitheskunk.skunkworks.gfx.Image;
 import com.danitheskunk.skunkworks.gfx.threedee.IRenderContext3D;
@@ -10,6 +11,7 @@ import java.nio.IntBuffer;
 
 public class Test3D extends BaseGame {
 	private Mesh[] meshes;
+	private ITexture dtex;
 
 	public Test3D() {
 		super(new Vec2i(1920, 1080), "Skunkworks 3d test");
@@ -20,9 +22,11 @@ public class Test3D extends BaseGame {
 		);
 		var path = "C:\\stream\\models\\Dani.glb";
 		//path = "C:\\stream\\models\\Amber_Arakada_V5_Blendshape.glb";
+		//path = "C:\\stream\\models\\Temp Chan 3.glb";
 		var bytes = engine.loadBytes(path);
 		var flags = Assimp.aiProcess_Triangulate;
-		flags |= Assimp.aiProcess_OptimizeGraph;
+		//flags |= Assimp.aiProcess_FixInfacingNormals;
+		//flags |= Assimp.aiProcess_OptimizeGraph;
 		flags |= Assimp.aiProcess_PreTransformVertices;
 		//flags |= Assimp.aiProcess_OptimizeMeshes;
 		//flags |= Assimp.aiProcess_Debone;
@@ -90,6 +94,7 @@ public class Test3D extends BaseGame {
 			faces += aiMesh.mNumFaces();
 		}
 
+		dtex = meshes[14].getTexture();
 
 
 		//window.setDebug(true);
@@ -105,11 +110,17 @@ public class Test3D extends BaseGame {
 		new Test3D().run();
 	}
 
+	@Override
+	protected void render(IRenderContext rc) {
+		//rc.drawTexture(Vec2i.ZERO, dtex);
+	}
+
 	@Override
 	protected void render3D(IRenderContext3D rc) {
 		for(int i = 0; i < meshes.length; ++i) {
 			rc.renderMesh(meshes[i]);
 		}
+		//rc.renderMesh(meshes[14]);
 		/*
 		rc.renderTriangle(new Vec3f(-10, -10, 1),
 			new Vec3f(10, -10, 1),

com/danitheskunk/skunkworks/backends/gl/RenderContext3D.java

@@ -8,8 +8,8 @@ import com.danitheskunk.skunkworks.gfx.threedee.Mesh;
 import static org.lwjgl.opengl.GL46.*;
 
 public class RenderContext3D extends BaseRenderContext3D {
-	private TextureAtlas textureAtlas;
 	private final int texCoordIndex;
+	private TextureAtlas textureAtlas;
 
 	public RenderContext3D(int texCoordIndex) {
 		this.texCoordIndex = texCoordIndex;
@@ -34,6 +34,26 @@ public class RenderContext3D extends BaseRenderContext3D {
 			var t1 = mesh.getUV(tri.getX());
 			var t2 = mesh.getUV(tri.getY());
 			var t3 = mesh.getUV(tri.getZ());
+
+			assert (t1.getX() >= 0.0 && t1.getX() <= 1.0);
+			assert (t1.getY() >= 0.0 && t1.getY() <= 1.0);
+			assert (t2.getX() >= 0.0 && t2.getX() <= 1.0);
+			assert (t2.getY() >= 0.0 && t2.getY() <= 1.0);
+			assert (t3.getX() >= 0.0 && t3.getX() <= 1.0);
+			assert (t3.getY() >= 0.0 && t3.getY() <= 1.0);
+
+			/*
+			t1 = new Vec2f(t1.getX() * 0.8 + 0.1,
+				t1.getY() * 0.8 + 0.1
+			);
+			t2 = new Vec2f(t2.getX() * 0.8 + 0.1,
+				t2.getY() * 0.8 + 0.1
+			);
+			t3 = new Vec2f(t3.getX() * 0.8 + 0.1,
+				t3.getY() * 0.8 + 0.1
+			);
+*/
+
 			//t1 = new Vec2f(t1.getX(), 1.0 - t1.getY());
 			//t2 = new Vec2f(t2.getX(), 1.0 - t2.getY());
 			//t3 = new Vec2f(t3.getX(), 1.0 - t3.getY());
@@ -41,6 +61,9 @@ public class RenderContext3D extends BaseRenderContext3D {
 			t2 = Vec2f.add(texOff, Vec2f.mul(texMult, t2));
 			t3 = Vec2f.add(texOff, Vec2f.mul(texMult, t3));
 
+
+
+
 			glVertexAttrib2d(texCoordIndex, t1.getX(), t1.getY());
 			glVertex3d(p1.getX(), p1.getY() - 0.5, p1.getZ() + 0.5);
 			glVertexAttrib2d(texCoordIndex, t2.getX(), t2.getY());

com/danitheskunk/skunkworks/gfx/threedee/Mesh.java

@@ -48,7 +48,9 @@ public class Mesh {
 
 		while(texCoordsBuffer.remaining() > 0) {
 			var uv = texCoordsBuffer.get();
-			mesh.addUV(new Vec2f(uv.x(), 1.0 - uv.y()));
+			var x = Math.max(0.0001, Math.min(uv.x(), 0.9999));
+			var y = Math.max(0.0001, Math.min(uv.y(), 0.9999));
+			mesh.addUV(new Vec2f(x, 1.0 - y));
 		}
 
 		return mesh;