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modelviewer: fix zfighting of models

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This uses the stencil buffer to hold face priorities and prevents drawing fragments of a lower priority overtop those of higher on the same model
This commit is contained in:
Adam
2018-08-04 16:19:25 -04:00
parent 90c962accf
commit 7e7fb16693
3 changed files with 80 additions and 8 deletions
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1
model-viewer/src/main/java/net/runelite/modelviewer/ModelManager.java
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@@ -174,6 +174,7 @@ public class ModelManager
loadConsumer.accept(md);
}
md.computeNormals();
md.computeMaxPriority();
models.put(key, md);
return md;
}

69
model-viewer/src/main/java/net/runelite/modelviewer/ModelViewer.java
View File

@@ -87,11 +87,13 @@ import static org.lwjgl.opengl.GL11.GL_TEXTURE_MAG_FILTER;
import static org.lwjgl.opengl.GL11.GL_TEXTURE_MIN_FILTER;
import static org.lwjgl.opengl.GL11.GL_TEXTURE_WRAP_S;
import static org.lwjgl.opengl.GL11.GL_TEXTURE_WRAP_T;
import static org.lwjgl.opengl.GL11.glStencilMask;
import static org.lwjgl.opengl.GL11.glTexParameteri;
import static org.lwjgl.opengl.GL12.GL_CLAMP_TO_EDGE;
import static org.lwjgl.opengl.GL43.GL_DEBUG_OUTPUT;
import static org.lwjgl.opengl.GL43.glDebugMessageCallback;
import org.lwjgl.opengl.KHRDebugCallback;
import org.lwjgl.opengl.PixelFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -273,7 +275,7 @@ public class ModelViewer
Display.setDisplayMode(new DisplayMode(800, 600));
Display.setTitle("Model Viewer");
Display.setInitialBackground((float) Color.gray.getRed() / 255f, (float) Color.gray.getGreen() / 255f, (float) Color.gray.getBlue() / 255f);
Display.create();
Display.create(new PixelFormat(0, 8, 8));
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glLoadIdentity();
@@ -357,9 +359,13 @@ public class ModelViewer
}
}
for (ModelDefinition def : models)
GL11.glClear(GL11.GL_STENCIL_BUFFER_BIT);
for (int prio = 255; prio >= 0; --prio)
{
drawModel(def);
for (ModelDefinition def : models)
{
drawModel(def, prio, prio == 255);
}
}
if (region != null)
@@ -380,8 +386,15 @@ public class ModelViewer
Display.destroy();
}
private static void drawModel(ModelDefinition md)
private static void drawModel(ModelDefinition md, int prio, boolean first)
{
GL11.glEnable(GL11.GL_STENCIL_TEST);
glStencilMask(0xff);
GL11.glStencilOp(GL11.GL_KEEP, GL11.GL_REPLACE, GL11.GL_REPLACE);
GL11.glStencilFunc(GL11.GL_GEQUAL, prio, 0xff);
for (int i = 0; i < md.faceCount; ++i)
{
if (md.faceRenderTypes != null)
@@ -398,6 +411,22 @@ public class ModelViewer
int vertexB = md.faceVertexIndices2[i];
int vertexC = md.faceVertexIndices3[i];
if (md.faceRenderPriorities != null)
{
int priority = md.faceRenderPriorities[i] & 0xFF;
if (priority != prio)
{
continue;
}
}
else
{
if (!first)
{
continue;
}
}
VertexNormal normalVertexA = md.vertexNormals[vertexA];
VertexNormal normalVertexB = md.vertexNormals[vertexB];
VertexNormal normalVertexC = md.vertexNormals[vertexC];
@@ -503,6 +532,8 @@ public class ModelViewer
GL11.glDisable(GL11.GL_TEXTURE_2D);
}
}
GL11.glDisable(GL11.GL_STENCIL_TEST);
}
private static void drawScene(Region region, Scene scene)
@@ -766,6 +797,8 @@ public class ModelViewer
(-regionY * TILE_SCALE) - ((length * TILE_SCALE) / 2)
);
GL11.glClear(GL11.GL_STENCIL_BUFFER_BIT);
int max = -1;
for (int i = 0; i < object.getObjectModels().length; ++i)
{
if (object.getObjectTypes() != null && object.getObjectTypes()[i] != location.getType())
@@ -774,13 +807,33 @@ public class ModelViewer
}
ModelDefinition md = modelManager.getModel(object.getObjectModels()[i], object, location);
if (md == null)
if (md != null)
{
continue;
if (md.maxPriority > max)
{
max = md.maxPriority;
}
}
}
drawModel(md);
for (int prio = max; prio >= 0; --prio)
{
for (int i = 0; i < object.getObjectModels().length; ++i)
{
if (object.getObjectTypes() != null && object.getObjectTypes()[i] != location.getType())
{
continue;
}
ModelDefinition md = modelManager.getModel(object.getObjectModels()[i], object, location);
if (md == null)
{
continue;
}
drawModel(md, prio, prio == max);
}
}
GL11.glTranslatef(