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LOD bias toggle

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This commit is contained in:
saschawillems 2016-06-04 13:25:40 +02:00
parent a074cd07a4
commit 8a7a4ce8b4
1 changed files with 29 additions and 1 deletions
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30
texturecubemap/texturecubemap.cpp
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@ -60,6 +60,7 @@ public:
struct {
glm::mat4 projection;
glm::mat4 model;
float lodBias = 0.0f;
} uboVS;
struct {
@ -79,7 +80,7 @@ public:
{
zoom = -4.0f;
rotationSpeed = 0.25f;
rotation = { -2.25f, -35.0f, 0.0f };
rotation = { -7.25f, 120.0f, 0.0f };
enableTextOverlay = true;
title = "Vulkan Example - Cube map";
}
@ -717,6 +718,21 @@ public:
reBuildCommandBuffers();
}
void changeLodBias(float delta)
{
uboVS.lodBias += delta;
if (uboVS.lodBias < 0.0f)
{
uboVS.lodBias = 0.0f;
}
if (uboVS.lodBias > cubeMap.mipLevels)
{
uboVS.lodBias = cubeMap.mipLevels;
}
updateUniformBuffers();
updateTextOverlay();
}
virtual void keyPressed(uint32_t keyCode)
{
switch (keyCode)
@ -729,17 +745,29 @@ public:
case GAMEPAD_BUTTON_X:
toggleObject();
break;
case 0x6B:
case GAMEPAD_BUTTON_R1:
changeLodBias(0.1f);
break;
case 0x6D:
case GAMEPAD_BUTTON_L1:
changeLodBias(-0.1f);
break;
}
}
virtual void getOverlayText(VulkanTextOverlay *textOverlay)
{
std::stringstream ss;
ss << std::setprecision(2) << std::fixed << uboVS.lodBias;
#if defined(__ANDROID__)
textOverlay->addText("Press \"Button A\" to toggle skybox", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
textOverlay->addText("Press \"Button X\" to toggle object", 5.0f, 100.0f, VulkanTextOverlay::alignLeft);
textOverlay->addText("LOD bias: " + ss.str() + " (Buttons L1/R1 to change)", 5.0f, 115.0f, VulkanTextOverlay::alignLeft);
#else
textOverlay->addText("Press \"s\" to toggle skybox", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
textOverlay->addText("Press \"space\" to toggle object", 5.0f, 100.0f, VulkanTextOverlay::alignLeft);
textOverlay->addText("LOD bias: " + ss.str() + " (numpad +/- to change)", 5.0f, 115.0f, VulkanTextOverlay::alignLeft);
#endif
}
};