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-rw-r--r--src/video_core/renderer_vulkan/vk_rasterizer.cpp9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index 33cbc0bb6..774ba1f26 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -62,13 +62,16 @@ constexpr auto ComputeShaderIndex = static_cast<std::size_t>(Tegra::Engines::Sha
VkViewport GetViewportState(const VKDevice& device, const Maxwell& regs, std::size_t index) {
const auto& src = regs.viewport_transform[index];
+ const float width = src.scale_x * 2.0f;
+ const float height = src.scale_y * 2.0f;
+
VkViewport viewport;
viewport.x = src.translate_x - src.scale_x;
viewport.y = src.translate_y - src.scale_y;
- viewport.width = src.scale_x * 2.0f;
- viewport.height = src.scale_y * 2.0f;
+ viewport.width = width != 0.0f ? width : 1.0f;
+ viewport.height = height != 0.0f ? height : 1.0f;
- const float reduce_z = regs.depth_mode == Maxwell::DepthMode::MinusOneToOne;
+ const float reduce_z = regs.depth_mode == Maxwell::DepthMode::MinusOneToOne ? 1.0f : 0.0f;
viewport.minDepth = src.translate_z - src.scale_z * reduce_z;
viewport.maxDepth = src.translate_z + src.scale_z;
if (!device.IsExtDepthRangeUnrestrictedSupported()) {