StillHammer
9618a647a2
- Fix texture state management in BgfxDevice: defer setTexture until submit() - Add transient instance buffer support for multi-batch rendering - Add ParticlePass with fire, smoke and sparkle particle systems - Load multiple textures from config (texture1..texture10) - Visual test now demonstrates multi-texture sprites and multi-particle effects 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
#pragma once
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#include "../RenderGraph/RenderPass.h"
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#include "../RHI/RHITypes.h"
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#include "../Frame/FramePacket.h"
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#include <vector>
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namespace grove {
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class ResourceCache;
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// ============================================================================
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// Particle Pass - Renders 2D particles with additive blending
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// ============================================================================
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class ParticlePass : public RenderPass {
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public:
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/**
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* @brief Construct ParticlePass with required shader
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* @param shader The shader program to use for particle rendering
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*/
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explicit ParticlePass(rhi::ShaderHandle shader);
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const char* getName() const override { return "Particles"; }
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uint32_t getSortOrder() const override { return 150; } // After sprites (100)
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std::vector<const char*> getDependencies() const override { return {"Sprites"}; }
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void setup(rhi::IRHIDevice& device) override;
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void shutdown(rhi::IRHIDevice& device) override;
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void execute(const FramePacket& frame, rhi::IRHIDevice& device, rhi::RHICommandBuffer& cmd) override;
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/**
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* @brief Set resource cache for texture lookup by ID
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*/
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void setResourceCache(ResourceCache* cache) { m_resourceCache = cache; }
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/**
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* @brief Set blend mode for particles
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* @param additive true for additive blending (fire, sparks), false for alpha (smoke)
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*/
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void setAdditiveBlending(bool additive) { m_additiveBlending = additive; }
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private:
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void flushBatch(rhi::IRHIDevice& device, rhi::RHICommandBuffer& cmd,
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rhi::TextureHandle texture, uint32_t count);
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rhi::ShaderHandle m_shader;
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rhi::BufferHandle m_quadVB;
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rhi::BufferHandle m_quadIB;
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rhi::BufferHandle m_instanceBuffer; // Fallback for when transient allocation fails
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rhi::UniformHandle m_textureSampler;
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rhi::TextureHandle m_defaultTexture; // White 1x1 texture for untextured particles
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ResourceCache* m_resourceCache = nullptr;
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bool m_additiveBlending = true; // Default to additive for fire/spark effects
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// GPU-aligned particle instances for batching
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std::vector<SpriteInstance> m_particleInstances;
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static constexpr uint32_t MAX_PARTICLES_PER_BATCH = 10000;
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};
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} // namespace grove
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