Use vertex pulling for ceiling stencil

2025-11-10 19:15:07 +00:00
parent 1f01147821
commit 1a85d9d562
3 changed files with 21 additions and 16 deletions
@@ -136,22 +136,13 @@ doDrawing' win pdata u = do
    glCullFace GL_BACK
    unless (debugOn Remove_LOS cfig) $ do
        glUseProgram (pdata ^. ceilingStencilShader . shaderUINT)
--        glProgramUniform3f
--            (pdata ^. ceilingStencilShader . shaderUINT)
--            0
--            vfx
--            vfy
--            20
--        glProgramUniform1f
--            (pdata ^. ceilingStencilShader . shaderUINT)
--            1
--            1000 -- this should be the furthest on screen distance from the viewpoint
-        glBindVertexArray $ pdata ^. ceilingStencilShader . shaderVAO . vaoName
+--        glBindVertexArray $ pdata ^. ceilingStencilShader . shaderVAO . vaoName
+        glBindVertexArray $ pdata ^. dummyVAO . vaoName
        glEnable GL_DEPTH_CLAMP
        glDrawArrays
            (_unPrimitiveMode $ pdata ^. ceilingStencilShader . shaderPrimitive)
            0
-            (fromIntegral trueNWalls)
+            (fromIntegral (trueNWalls * 6))
        glDisable GL_DEPTH_CLAMP
    glStencilMask 127 -- to alter last seven bits
    glStencilOp GL_KEEP GL_KEEP GL_KEEP