internal void Draw(GameObject g, ref Matrix4 viewProjection, HelperFrustum frustum, int textureIndex)
{
if (g == null || !g.HasModel || g.CurrentWorld == null || g.Opacity <= 0)
{
return;
}
if (KWEngine.Projection == ProjectionType.Perspective)
{
g.IsInsideScreenSpace = frustum.SphereVsFrustum(g.GetCenterPointForAllHitboxes(), g.GetMaxDiameter() / 2);
}
else
{
Vector3 lookAt = CurrentWorld.GetCameraLookAtVectorEitherWay();
Vector3 camPos = CurrentWorld.GetCameraPositionEitherWay();
Vector3 objectCenter = g.GetCenterPointForAllHitboxes();
float dot = Vector3.Dot(objectCenter - camPos, lookAt);
g.IsInsideScreenSpace = dot > 0;
}
if (!g.IsInsideScreenSpace)
{
return;
}
GL.Disable(EnableCap.Blend);
lock (g)
{
if (g.Opacity < 1)
{
GL.Enable(EnableCap.Blend);
}
GL.Uniform4(mUniform_Glow, g.Glow);
GL.Uniform4(mUniform_Outline, g.ColorOutline);
GL.Uniform3(mUniform_TintColor, g.Color);
GL.Uniform1(mUniform_LightAffection, g.IsAffectedByLight ? 1 : 0);
// Camera
if (!CurrentWorld.IsFirstPersonMode)
{
GL.Uniform3(mUniform_uCameraPos, g.CurrentWorld.GetCameraPosition().X, g.CurrentWorld.GetCameraPosition().Y, g.CurrentWorld.GetCameraPosition().Z);
GL.Uniform3(mUniform_uCameraDirection, g.CurrentWorld.GetCameraLookAtVector());
}
else
{
GL.Uniform3(mUniform_uCameraPos, g.CurrentWorld.GetFirstPersonObject().Position.X, g.CurrentWorld.GetFirstPersonObject().Position.Y + g.CurrentWorld.GetFirstPersonObject().FPSEyeOffset, g.CurrentWorld.GetFirstPersonObject().Position.Z);
GL.Uniform3(mUniform_uCameraDirection, HelperCamera.GetLookAtVector());
}
Matrix4.Mult(ref g.ModelMatrixForRenderPass[0], ref viewProjection, out _modelViewProjection);
Matrix4.Transpose(ref g.ModelMatrixForRenderPass[0], out _normalMatrix);
Matrix4.Invert(ref _normalMatrix, out _normalMatrix);
GL.UniformMatrix4(mUniform_ModelMatrix, false, ref g.ModelMatrixForRenderPass[0]);
GL.UniformMatrix4(mUniform_NormalMatrix, false, ref _normalMatrix);
GL.UniformMatrix4(mUniform_MVP, false, ref _modelViewProjection);
if (g.ColorEmissive.W > 0)
{
GL.Uniform4(mUniform_EmissiveColor, g.ColorEmissive);
}
else
{
GL.Uniform4(mUniform_EmissiveColor, Vector4.Zero);
}
string meshName = g.Model.Meshes.Keys.ElementAt(0);
GeoMesh mesh = g.Model.Meshes[meshName];
GeoMaterial meshMaterial = mesh.Material;
GL.Uniform1(mUniform_Roughness, meshMaterial.Roughness);
GL.Uniform1(mUniform_Metalness, meshMaterial.Metalness);
GL.Uniform4(mUniform_TextureTransform, mesh.Terrain.mTexX, mesh.Terrain.mTexY, g.mTextureOffset.X, g.mTextureOffset.Y);
// albedo map:
int texId = -1;
texId = mesh.Material.TextureAlbedo.OpenGLID;
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
GL.BindTexture(TextureTarget.Texture2D, texId > 0 ? texId : KWEngine.TextureWhite);
GL.Uniform1(mUniform_Texture, textureIndex);
GL.Uniform1(mUniform_TextureUse, texId > 0 ? 1 : 0);
GL.Uniform3(mUniform_BaseColor, texId > 0 ? new Vector3(1f, 1f, 1f) : new Vector3(meshMaterial.ColorAlbedo.X, meshMaterial.ColorAlbedo.Y, meshMaterial.ColorAlbedo.Z));
textureIndex++;
// normal map:
texId = meshMaterial.TextureNormal.OpenGLID;
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
GL.BindTexture(TextureTarget.Texture2D, texId > 0 ? texId : KWEngine.TextureWhite);
GL.Uniform1(mUniform_TextureNormalMap, textureIndex);
GL.Uniform1(mUniform_TextureUseNormalMap, texId > 0 ? 1 : 0);
textureIndex++;
// roughness map:
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
if (meshMaterial.TextureRoughness.OpenGLID > 0)
{
GL.BindTexture(TextureTarget.Texture2D, meshMaterial.TextureRoughness.OpenGLID);
GL.Uniform1(mUniform_TextureRoughnessMap, textureIndex);
GL.Uniform1(mUniform_TextureUseRoughnessMap, 1);
GL.Uniform1(mUniform_TextureRoughnessIsSpecular, meshMaterial.TextureRoughnessIsSpecular ? 1 : 0);
}
else
{
if (meshMaterial.TextureRoughnessInMetalness && meshMaterial.TextureMetalness.OpenGLID > 0)
{
GL.BindTexture(TextureTarget.Texture2D, KWEngine.TextureWhite);
GL.Uniform1(mUniform_TextureRoughnessMap, textureIndex);
GL.Uniform1(mUniform_TextureUseRoughnessMap, 0);
GL.Uniform1(mUniform_TextureRoughnessIsSpecular, 1);
}
else
{
GL.BindTexture(TextureTarget.Texture2D, KWEngine.TextureWhite);
GL.Uniform1(mUniform_TextureRoughnessMap, textureIndex);
GL.Uniform1(mUniform_TextureUseRoughnessMap, 0);
GL.Uniform1(mUniform_TextureRoughnessIsSpecular, 0);
}
}
textureIndex++;
// metalness map:
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
if (meshMaterial.TextureMetalness.OpenGLID > 0)
{
GL.BindTexture(TextureTarget.Texture2D, meshMaterial.TextureMetalness.OpenGLID);
GL.Uniform1(mUniform_TextureMetalnessMap, textureIndex);
GL.Uniform1(mUniform_TextureUseMetalnessMap, 1);
}
else
{
GL.BindTexture(TextureTarget.Texture2D, KWEngine.TextureBlack);
GL.Uniform1(mUniform_TextureMetalnessMap, textureIndex);
GL.Uniform1(mUniform_TextureUseMetalnessMap, 0);
}
textureIndex++;
// emissive map:
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
if (meshMaterial.TextureEmissive.OpenGLID > 0)
{
GL.BindTexture(TextureTarget.Texture2D, meshMaterial.TextureEmissive.OpenGLID);
GL.Uniform1(mUniform_TextureEmissiveMap, textureIndex);
GL.Uniform1(mUniform_TextureUseEmissiveMap, 1);
}
else
{
GL.BindTexture(TextureTarget.Texture2D, KWEngine.TextureBlack);
GL.Uniform1(mUniform_TextureEmissiveMap, textureIndex);
GL.Uniform1(mUniform_TextureUseEmissiveMap, 0);
}
textureIndex++;
// Blendmapping:
if (mesh.Terrain._texBlend > 0 && mesh.Terrain._texBlend != KWEngine.TextureBlack)
{
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
GL.BindTexture(TextureTarget.Texture2D, mesh.Terrain._texBlend);
GL.Uniform1(mUniform_TextureBlend, textureIndex);
textureIndex++;
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
GL.BindTexture(TextureTarget.Texture2D, mesh.Terrain._texR);
GL.Uniform1(mUniform_TextureRed, textureIndex);
textureIndex++;
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
if (mesh.Terrain._texG > 0 && mesh.Terrain._texG != KWEngine.TextureAlpha)
{
GL.BindTexture(TextureTarget.Texture2D, mesh.Terrain._texG);
}
else
{
GL.BindTexture(TextureTarget.Texture2D, KWEngine.TextureAlpha);
}
GL.Uniform1(mUniform_TextureGreen, textureIndex);
textureIndex++;
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
if (mesh.Terrain._texB > 0 && mesh.Terrain._texB != KWEngine.TextureAlpha)
{
GL.BindTexture(TextureTarget.Texture2D, mesh.Terrain._texB);
}
else
{
GL.BindTexture(TextureTarget.Texture2D, KWEngine.TextureAlpha);
}
GL.Uniform1(mUniform_TextureBlue, textureIndex);
textureIndex++;
GL.Uniform1(mUniform_UseBlend, 1);
}
else
{
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
GL.BindTexture(TextureTarget.Texture2D, KWEngine.TextureBlack);
GL.Uniform1(mUniform_TextureBlend, textureIndex);
textureIndex++;
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
GL.BindTexture(TextureTarget.Texture2D, KWEngine.TextureBlack);
GL.Uniform1(mUniform_TextureRed, textureIndex);
textureIndex++;
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
GL.BindTexture(TextureTarget.Texture2D, KWEngine.TextureBlack);
GL.Uniform1(mUniform_TextureGreen, textureIndex);
textureIndex++;
GL.ActiveTexture(TextureUnit.Texture0 + textureIndex);
GL.BindTexture(TextureTarget.Texture2D, KWEngine.TextureBlack);
GL.Uniform1(mUniform_TextureBlue, textureIndex);
textureIndex++;
GL.Uniform1(mUniform_UseBlend, 0);
}
GL.BindVertexArray(mesh.VAO);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, mesh.VBOIndex);
GL.DrawElements(mesh.Primitive, mesh.IndexCount, DrawElementsType.UnsignedInt, 0);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, 0);
GL.BindVertexArray(0);
}
if (g.Opacity < 1)
{
GL.Disable(EnableCap.Blend);
}
}